Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done using the HEASARC data.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Sat Nov 1 22:16:56 EDT 2014
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger615672
======================================================================
Trigger: 00615672 Segment: 000
BAT Trigger Time: 435263140.672 [s; MET]
Trigger Stop: 435263141.696 [s; MET]
UTC: 2014-10-17T18:25:28.004480 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 93.6292819665991 Dec: -58.5544655852862 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 11.16
Image Trigger?: NO
Rate S/N Ratio: 15.4596248337403 [ if not an image trigger ]
Image S/N Ratio: 11.16
Analysis Position: [ source = BAT ]
RA: 93.6292819665991 Dec: -58.5544655852862 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 93.6067956086993 Dec: -58.6051136285773 [deg; J2000]
{ 06h 14m 25.6s , -58d 36' 18.4" }
+/- 2.21007840622997 [arcmin] (estimated 90% radius based on SNR)
+/- 1.16222223178023 [arcmin] (formal 1-sigma fit error)
SNR: 9.7973225609784
Angular difference between the analysis and refined position is 3.119214 arcmin
Partial Coding Fraction: 0.640625 [ including projection effects ]
Duration
T90: 55.8079999089241 +/- 2.86416207927003
Measured from: 0.776000022888184
to: 56.5839999318123 [s; relative to TRIGTIME]
T50: 4.02399998903275 +/- 0.286803016098481
Measured from: 46.2879999876022
to: 50.311999976635 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 46.6040000319481
to: 47.6040000319481 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.21999996900558
to: 65.5760000348091 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.415875 1.992914 1.400935 0.272170
0.053974 0.056082 0.048542 0.039290 [error]
Peak 0.154044 0.303938 0.269562 0.063284
0.008124 0.009727 0.009420 0.005915 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 66.796 -1.220 65.576
T90 55.808 0.776 56.584
T50 4.024 46.288 50.312
Peak 1.000 46.604 47.604
====== Spectral Analysis Summary =====================================
Model : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index : photon index: E^{Ph_index}
Ph_90err : 90% error of the photon index
Epeak : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm : normalization at 50 keV in both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2 : Chi-Squared
dof : degree of freedo
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: CPL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.559 -0.064 0.064 - - - 4.94e-03 -1.74e-04 1.73e-04 52.010 57
CPL -1.028 -0.264 0.280 94.083 -16.355 41.568 8.95e-03 -2.23e-03 3.21e-03 39.410 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: CPL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.205 -0.063 0.063 - - - 5.32e-02 -2.00e-03 2.00e-03 69.580 57
CPL -0.483 -0.273 0.290 117.254 -18.776 37.230 1.14e-01 -2.78e-02 3.93e-02 47.160 56
=== Fluence/Peak Flux Summary ===
Model Band1 Band2 Band3 Band4 Band5 Total
15-25 25-50 50-100 100-350 15-150 15-350 keV
Fluence PL 4.45e-07 7.89e-07 1.07e-06 3.00e-06 3.10e-06 5.30e-06 erg/cm2
90%_error_low -2.82e-08 -2.98e-08 -4.85e-08 -2.90e-07 -1.17e-07 -3.24e-07 erg/cm2
90%_error_hi 2.88e-08 2.97e-08 4.85e-08 3.10e-07 1.17e-07 3.40e-07 erg/cm2
Peak flux PL 1.65e+00 1.98e+00 1.72e+00 2.55e+00 6.25e+00 7.91e+00 ph/cm2/s
90%_error_low -1.16e-01 -8.71e-02 -7.41e-02 -2.22e-01 -2.42e-01 -3.12e-01 ph/cm2/s
90%_error_hi 1.19e-01 8.67e-02 7.39e-02 2.35e-01 2.42e-01 3.13e-01 ph/cm2/s
Fluence CPL 4.00e-07 8.22e-07 1.10e-06 1.47e-06 2.98e-06 3.80e-06 erg/cm2
90%_error_low -3.48e-08 -3.43e-08 -5.33e-08 -3.98e-07 -1.32e-07 -4.17e-07 erg/cm2
90%_error_hi 3.55e-08 3.47e-08 5.37e-08 5.79e-07 1.32e-07 5.86e-07 erg/cm2
Peak flux CPL 1.39e+00 2.07e+00 1.87e+00 1.35e+00 6.08e+00 6.67e+00 ph/cm2/s
90%_error_low -1.44e-01 -9.77e-02 -9.26e-02 -2.67e-01 -2.49e-01 -3.72e-01 ph/cm2/s
90%_error_hi 1.48e-01 9.84e-02 9.36e-02 3.44e-01 2.50e-01 4.18e-01 ph/cm2/s
======================================================================
Special notes of this burst